Python : Booleans

In Python, a boolean is a built-in data type that represents one of two possible values: True or False. Booleans are commonly used in programming to control the flow of execution, make decisions, and perform logical operations.

Here are some common operations and examples involving booleans in Python:

Boolean Literals:

  • True: Represents the boolean value True.
  • False: Represents the boolean value False.

Boolean Variables:

is_student = True
is_active = False
 

Boolean Comparison Operators:

  • == : Checks if two values are equal.
  • != : Checks if two values are not equal.
  • < : Checks if the left operand is less than the right operand.
  • > : Checks if the left operand is greater than the right operand.
  • <= : Checks if the left operand is less than or equal to the right operand.
  • >= : Checks if the left operand is greater than or equal to the right operand.

Example:

x = 5
y = 10
result = x < y   # True
 

Boolean Logical Operators:

  • and : Returns True if both operands are True.
  • or : Returns True if at least one of the operands is True.
  • not : Returns True if the operand is False (inverts the boolean value).

Example:

x = 5
y = 10
z = 15
result = (x < y) and (y < z)   # True
 

Boolean Conversion:
bool() : Converts a value to a boolean. In general, any non-zero or non-empty value is considered True, while zero or empty values are considered False.

Example:

x = 0
y = 10
result_x = bool(x)   # False
result_y = bool(y)   # True
 

Boolean Expressions:
Boolean expressions are expressions that evaluate to either True or False.

Example:

x = 5
y = 10
result = x < y   # True
 

Conditional Statements:
Conditional statements, such as `if`, `elif`, and `else`, use boolean expressions to control the flow of execution.

Example:

x = 5
if x > 0:
    print("x is positive")
else:
    print("x is not positive")
 

These are some of the common operations and examples involving booleans in Python. Booleans are fundamental in programming and are extensively used for decision-making and logical operations.